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revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.336 by adcroft, Tue Jul 27 14:55:23 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
7    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
8    o start with no AB and no initial filtering (staggerTimeStep):
9      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
10    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
11      (external loading & cpl import/export stay in forward_step.F)
12    o update coupling interface to work with new staggerTimeStep
13    o change MDSIO ptracers_pickup.
14    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
15    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
16    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
17    
18    checkpoint54c_post
19    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
20      this affects (truncation error) output.txt of test-exp:
21       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
22    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
23    o change Qnet to always be the net heat flux, (+upward).
24      affects (truncation error) output of natl_box exp.: updated
25    o define the max number of passive tracers in PTRACERS_SIZE.h
26    o start to test mnc routinely in exp0
27    o add sea-ice loading (sIceLoad) as a new forcing field.
28    
29    checkpoint54b_post
30    o add testreport "-j JOBS" option for parallel builds (tested and pretty
31       impressive on Altix and Opteron systems)
32    o diagnostics can now write NetCDF files through the mnc package
33    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
34    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
35    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
36      affects (truncation error) output of lab_sea & natl_box exp.: updated
37    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
38    
39    checkpoint54a_post
40    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
41    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
42    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
43    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
44      + internal_wave (shift in writing cg2d_ini_res)
45    checkpoint54a_pre
46    
47    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
48      - modified verification/lab_sea and natl_box_adjoint accordingly
49    
50    checkpoint54
51    checkpoint53g_post
52    o prepare splitting of thermodynamics: store convect.counter in common block
53    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
54      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
55    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
56    o new parameter "nShapS": allow to treat differently S from T (nShapT)
57    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
58    o restore adjointability
59    
60    checkpoint53f_post
61    o modifications that affect AIM experiment results (update output.txt):
62      - no advection of S at top interface Nr (pkg/generic_advdiff)
63      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
64    o AIM pkg:
65      - include stability function into surf.Flux derivative relative to Tsurf
66      - calculate clear-sky radiation & surface temp. change (for diagnostics)
67    
68    checkpoint53e_post
69    o merged cylindrical coord configuration
70    o added rotating_tank experiment
71    checkpoint53e_pre
72    
73    checkpoint53d_post
74    o faulks upgraded: re-generate output.txt that have changed:
75       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
76    o Added Bryan and Lewis, 1979, vertical diffusivity profile
77    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
78    o added Sadourny discretization of Coriolis
79      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
80      - re-enabled use of omega3 (useAbsVorticity)
81    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
82      vector-invariant equations
83      - note: does *NOT* yet use same variable visc. for no-slip BC's.
84    o recoded the lateral boundary conditions for non-hydrostatic w, this time
85      hopefully without new bugs
86      - still to do: biharmonic friction for non-hydrostatic w
87    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
88    o regenerated output for global_ocean_ebm (using -ieee)
89    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
90      of mom_common/
91      - simple re-arrangement of instructions within computing loop
92    checkpoint53d_pre
93    
94    checkpoint53c_post
95    o new version of coupler for AIM+thSIce and Ocean models
96     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
97     - land: change Evaporation of snow
98     - aim with thSIce: fix bug in snow-precip.
99    o changes to calc_gw.F
100     - bug fix for w^2 term near the bottom boundary
101     - (hopefully) improve the lateral slip boundary condtions for use with
102        partial/looped cells
103      - because the bug fix changes two verification experiments anyway (exp5
104        and plume on slope), change the lateral boundary condition from half slip
105        to the value of no_slip_sides
106    o ebm package wasnt quite up to the parallel task. Fixed that.
107    o Adjoint of EBM package + verification
108      * TLM OK
109      * ADM not sufficient accuracy yet (needs further testing)
110    
111    checkpoint53b_post
112    o Commiting new energy balance model to repository
113      * package is pkg/ebm
114      * verif. is verification/global_ocean_ebm
115      * references are in ebm_driver.F
116    C      * X. Wang, P. Stone and J. Marotzke, 1999:
117    C        Global thermohaline circulation. Part I:
118    C        Sensitivity to atmospheric moisture transport.
119    C        J. Climate 12(1), 71-82
120    C      * X. Wang, P. Stone and J. Marotzke, 1999:
121    C        Global thermohaline circulation. Part II:
122    C        Sensitivity with interactive transport.
123    C        J. Climate 12(1), 83-91
124    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
125    C        Destabilization of the thermohaline circulation
126    C        by atmospheric eddy transports.
127    C        J. Climate 7(12), 1870-1882
128    o Will need long integration testing.
129    checkpoint53b_pre
130    
131    o created pkg/mom_common in preparation for variable viscosity code
132    o renamed and split ini_mnc_io
133    o pkg/land: only liquid water can diffuse or run-off
134    o AIM using land: soil wetness availability account for snow
135    o added printMapIncludesZeros to EEPARMS namelist
136    
137    checkpoint53a_post
138    o restore TAMC compatiility for exf_constants.h
139      (no usage of _d in .h)
140    o Additional storing in KPP in an attempt to fix
141      TAMC problem with adjoint of KPP code.
142      (no success...)
143      Identical code works fine with TAF.
144    o Fixed verification/natl_box_adjoint experiments.
145      Initial conditions for Experiments 4 and 5 are now
146      set to "SEAICE_initialHEFF=0", which is more reasonable,
147      and hence gives results closer to that of Experiment 2.
148      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
149    
150    checkpoint53
151    o stable checkpoint with up to date adjoint
152      TLM tests only run for 1st grdchk at the moment. Its unclear if
153      this is a code problem or a problem with resetting code for g_
154      variables that is being autogenerated wrong.
155      Otherwise:
156       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
157       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
158         are both still in chaos following their security messes.
159    
160    checkpoint52n_post
161    o various build (mostly genmake2) changes including:
162      - ability to build/run more easily within Cygwin and MacOS X
163      - more complicated Makefiles with a stronger dependence on Gnu Make
164    o pkg/seaice modifications
165      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
166        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
167        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
168      - changed proxy for geostrophic velocity and updated
169        verification/lab_sea/results/* accordingly
170      - removed ADI dynamic solver from pkg/seaice
171      - replaced all occurrences of 1/CSTICE or 1/CSUICE
172        they caused a segmentation fault under certain circumstances
173      - removed unused field WATR
174    o bug fix in exf-package:
175      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
176         now reflect that.
177    o small fixes in the cal-package:
178      - set reference date to first of January for the 'model'-calendar
179      - failing of cal_CheckDate in cal_FullDate now actually results in a
180        warning
181    o small modifications in exf-package to increase flexibility:
182      - change climtempfreeze from a constant to a runtime parameter that
183        is specified in data.exf_clim (default = -1.9)
184      - introduce runtime parameter windstressmax (default = 2.0) that is
185        specified in data.exf
186    o fix in pkg/thsice:
187      - update Evap (Tsf changes) to be consistent with Latent heat flux
188      - maintain snow precipitation unchanged (even if Tsf >=0).
189     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
190    
191    checkpoint52m_post
192    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
193      this does not change any of the results, because myIter=0 in swfrac always
194      lead to jwtype=2 (the default anyway), but the call makes little sense
195      as a default
196    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
197    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
198      atmospheric model (AIM) to use it ; add a "slab ocean" component.
199    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
200    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
201    o extending useSingleCpuIO option to work with new exch2 I/O format
202      - old-style, missing-tile I/O is still accessible by defining CPP
203        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
204    o monitor package can write to NetCDF files and/or STDOUT
205    o fix re-definition bug in MNC_GRID_INIT_ALL()
206    o doc/api_reference added
207      - a framework for building an API Reference Manual using all
208        the "protex" comments embedded in the code
209      - see pkg/generic_advdiff, pkg/mnc for examples
210    o MNC:
211      - make myThid the last argument for all subroutines
212      - new default for the grid files: NO halos
213      - add useMNC and other run-time flags
214      - separate per-file-group handling of the unlimited dimension
215      - early initialization of MNC w/ flags read at the eeboot stage
216        and lookup tables set in initialize_fixed
217      - write all MNC output to a freshly-created directory
218    o thermodynamics sea-ice (thsice) is now tested with testreport.
219    o test exp. advect_cs: use the standard cs32 grid ; update output.
220    o Added functionality to grdchk:
221      pick global i,j,k position (or nearest wet) where to perform check.
222    
223    checkpoint52l_post
224    o new land formulation:
225      a) use ground enthalpy as prognostic variable to ensure exact
226         energy conservation.
227      b) account for water temperature and for latent heat of freezing
228         in all processes (rain, run-off, ground storage)
229      c) compute surface and ground temperature implicitly.
230    o aim_v23 modification for new land model:
231      a) Treat separately land / ocean / sea-ice surface fluxes
232         to allow implicit computation of land & sea-ice surface temp.
233      b) add snow precipitation.
234    checkpoint52l_pre
235    
236    o fix problem (when 1 tile is empty) in min/max monitor.
237    o fix bug in timeAve (u,vZetatave in common block)
238    o no restoring terms under ice for pkg/seaice
239    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
240    o bug fix for pkg/seaice pickups
241    o change MNC call locations and add coordinate attributes
242    o mask vorticity at the corner ; affects global_ocean.cs output
243    o fix ini_curvilinear_grid ; test CS experiments with mpi
244    o aim.5l_cs: modify sea-ice fraction input file ; update output
245    o exf: Adding simple range check routine for exf fields after read
246    
247    checkpoint52k_post
248    o removed top-level directory "diags"
249      - we migrated these functions to pkg/timeave a long time ago
250    o fixed bug introduced in pkg/monitor
251    o accuracy ctrlprec = 32 insuffient for gradient checks using
252      averaged fields (I/O via cost_averages)
253      -> use ctrl.h in active_file*.F to control I/O precision.
254    o paramter list of CALL ADTHE_MAIN_LOOP
255    o added initial do_the_model_io to ecco
256    o set all ...Freq to zero after cost_final
257      taveFreq, dumpFreq, pChkptFreq
258    o MAIN and ECCO differentiability restored
259    
260    checkpoint52j_post
261    o fix nchklev in tamc.h for global_ocean...
262    o Bringing flow and store directives up-to-date
263    o Really weird thing!
264      call do_the_model_io from the_main_loop with parameters
265      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
266      TAF places a faulty re-call of initialise_varia
267      after cost_final call which should not be there!
268    checkpoint52j_pre
269    
270    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
271      error messages
272    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
273    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
274      debug output
275    o modfied mdsio_writefield.F to handle non-global files under exch2
276    o update AIM Cubed-Sphere exp (aim.5l_cs):
277      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
278    o update AIM Equatorial Channel exp:
279      use standard aim_v23 pkg and change the SST fields to be more realistic.
280    o globalFile now works with exch2
281    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
282      mon_vort3.F to make exch2 friendly with >1 tile per cube face
283    o limit timeave output for hi-res integrations
284    
285    checkpoint52i_post
286    o removed CPP_EEOPTIONS.h from verification/*/code
287    o updated the tiling for global_ocean_pressure
288    checkpoint52i_pre
289    
290    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
291      the old pkg/aim).
292    
293    checkpoint52h_pre
294    o shortened offending lines in exch2_send_rx?.template
295    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
296    o genmake2: add build & execute test for NetCDF code
297    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
298      old grid files, moved CPP_EEMACROS.h to pkg/exch2
299    o added useSingleCPUIO flag to monitor.F and mon_out.F
300    o added temporary hack for sea-ice dynamics on the cube:
301      metric terms are ignored and it is assumed that
302      there is no sea-ice on cube faces 1, 2, 4, and 5.
303    
304    checkpoint52f_post
305    o added exch2 cube routines to pkg/exch2
306    o modified hs94.cs-32x32x5 to use it
307    o added new grid files to hs94.cs-32x32x5
308    checkpoint52f_pre
309    
310    checkpoint52e_post
311    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
312      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
313    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
314      to work with implicit vertical advection and AB ;
315    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
316    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
317     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
318    checkpoint52e_pre
319    
320    o fix bug in impldiff when Nr=1 or Nr=2.
321    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
322    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
323    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
324      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
325    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
326    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
327    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
328    
329    checkpoint52d_post
330    o re-tiled many expts to allow comparison in multi-processor mode
331      - updated output accordingly
332      - changed hs94.128x64x5 to use intial T from file rather than use the
333        random number generator
334    o add infrastructure in model routines for fizhi and gridalt packages
335    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
336    o changes to permit hi-res, cubed-sphere, configuration
337      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
338      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
339      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
340        of surface winds for the cube
341      (A verification experiment, based on global_ocean.cs32x15, but with
342       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
343       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
344       complete with example surface forcing files and matlab scripts to look
345       at the output and compare it with that of global_ocean.cs32x15.)
346    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
347       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
348       to conform to the common rule.
349    o check-in the first version of the coupler + interfaces for multi-components
350       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
351       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
352       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
353       - ocean and atmos. share the same horizontal grid (no interpolation).
354       - exchanges between component and coupler is done in forward_step
355    o new verification experiment, cpl_aim+ocn:
356       coupled ocean - AIM atmosphere on cs32 grid.
357    
358    checkpoint52d_pre
359    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
360    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
361    
362    checkpoint52c_post
363    o Fixing OPTIONS files for use of exf:
364      - ALLOW_ECCO not needed
365      - ECCO_CPPOPTIONS.h should not be included from
366        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
367        as has been the case in the past
368      - All cal/exf related options are currently set in
369        single header file. Should remain so until we
370        agree on a consistent new policy.
371    o Removed all CPP options for cal package.
372      cal has no more CPP options.
373    o modified STOREs in GAD_ADVECTION
374    o corrected key comp. for passkey
375    
376    checkpoint52b_post
377    o new version: "thsice" of thermodynamic sea-ice pkg:
378     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
379     - modify fluxes but do not change theta directly;
380     - light cleaning of bulk_force pkg (still needed with thsice).
381     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
382       + output_thsice.txt to test thsice & bulk_force pkgs.
383    o put back grid & coriolis monitor output.
384    checkpoint52b_pre
385    
386    o call "do_the_model_io" at the beginning (=> dump initial state)
387    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
388    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
389      (need info on NUMBER_OF_PTRACERS)
390    o missing PTRACERS headers in some routines
391    o default tamc.h in pkg/autodiff supposed to crash
392      to ensure proper customization
393    
394    checkpoint52a_post
395    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
396      - moved surfaceTendencyTice from pkg/seaice to main code
397      - subroutine FREEZE_SURFACE now limits only surface temperature
398        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
399        => new output.txt for global_ocean.cs32x15 & global_with_exf
400      - keep the old version of FREEZE for backward compatibility;
401        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
402      - corresponding modifs for TAF directives
403    o added surface flux output variables to TIMEAVE_STATVARS
404    o time-averaged output for pkg/ptracers
405    o fix problem with ECCO-related divided adjoint
406      snapshot file was missing some ad-variables,
407      but no warning issued by TAF
408    
409    checkpoint52a_pre
410    o some bug fixes for #undef REAL4_IS_SLOW
411    
412    checkpoint52 = ecco_c52_e35
413    o after testing adjoints of checkpoint51u_post
414    
415    checkpoint51u_post
416    o this is the post-merge tag of the ecco-branch
417      (needs another clean checkout and re-testing)
418    o various natl_box_adjoint configs and results
419      but no input fields
420    o obcs adjoint not yet merged!
421    o adding ECCO global 1x1 and 2x2 degree configs
422    o updated/extended some store directives for seaice
423    o pkg/ecco now containes ecco-specific part of cost function
424    o top level routines the_main_loop, forward_step
425      supersede those in model/src/
426      previous input data.cost now in data.ecco
427      (new namelist ecco_cost_nml)
428    o in ctrl/ cleaned some cross-dependencies and updated CPP options
429    
430    checkpoint51t_post
431    o this is the pre-merge tag of the ecco-branch
432    
433    checkpoint51s_post
434    o cleanup: removed various obsolete #define-s
435    o pkg/grdchk
436      - renamed 'ph-grd 3' to 'grad-res'
437      - merged from ecco-branch
438        (remaining bug fixes for obcs gradient checks)
439      - additional high-precision output for testreport
440        (grep for 'precision_grdchk_result')
441    
442    checkpoint51r_post
443    o cleaned up or removed CPP_OPTIONS.h files
444    o updated results for some of the tests to reflect the new
445      optfiles (-ieee: -O0 instead of -O3)
446    
447    checkpoint51q_post
448    o cd_code:
449      - moved cd_scheme.F -> cd_code_scheme.F
450      - separate read_checkpoint from cd_code_ini_vars.F
451      - separated cd_code part from write_checkpoint
452      - updated AD_SOURCE, generated .flow
453      - added CD_CODE_VARS.h to the_main_loop
454      - Moving cd_code specific store dir.s to pkg/cd_code
455    o ctrl package totally restructured
456      - pack/unpack now optional and decoupled from
457        xx_/adxx_ I/O
458      - ctrl_pack/unpack cleaned
459        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
460      - confined inclusion of AD_CONFIG.h to where necessary.
461    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
462    
463    checkpoint51p_post
464    o create initial cd_code package
465      - WARNING: the initialization of fields within packages
466        is broken because INI_FIELDS (where READ_CHECKPOINT is
467        called) is called *before* PACKAGES_INIT_VARIABLES.
468        This seems to be backwards since
469        1) its important to initially zero the entire field including
470           the "halo" region
471        2) zeroing needs to be done *before* reading pickup info
472           and the pickup call might or might not happen in any
473           particular run
474      - this needs an overhaul for R2
475    o cleanup verification/*/code/GMREDI_OPTIONS.h
476    o cleanup testreport
477    
478    checkpoint51o_post
479    o bringing AD-related verif's up to date with genmake2
480      - carbon/
481      - global_ocean.90x40x15/
482      - hs.94.1x64x5/
483      - (front_relax/ )
484    o (more) consistent directory structure for AD-related verif.'s
485    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
486    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
487    o bug fix in find_alpha.F for MDJWF:
488      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
489        change rho -> rho-rhoConst
490      - replace call find_rho to find_rhonum
491    o initialisation of rFlx extended to full array (required by TAF)
492      and shifted to thermodynamics
493    o removed PTRACERS.h in ptracers routine
494    o added surfacetendencyPtr to S/R parameter list pracers_forcing
495    o Correcting initialisations for fVerU, fVerV.
496    o helping TAF to recognize dependency on kUp for
497      fVerU, fVerV
498    o Replacing delZ by delR in pkg/ctrl/
499    checkpoint51o_pre
500    
501    o undid all of cp51 pending some cleanups and discussion
502    o added the [#include "AD_CONFIG.h"] statement to all files that need
503       it for adjoint/tl #defines
504     o re-worked the build logic in genmake2 to support AD_CONFIG.h
505     o removed tools/genmake since it no longer works
506    
507    checkpoint51n_post
508    o modifications to make FREEZE flux visible to pkg/kpp
509      - moved surfaceTendencyTice from pkg/seaice to main code
510      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
511      - subroutine FREEZE now limits only surface temperature
512        (this means new output.txt for global_ocean.90x40x15,
513         global_ocean.cs32x15, and global_with_exf)
514    o added surface flux output variables to TIMEAVE_STATVARS
515    
516    checkpoint51n_pre
517    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
518    o added [#include "AD_CONFIG.h"] to all files that use the following
519      defines:
520      - ALLOW_ADJOINT_RUN
521      - ALLOW_TANGENTLINEAR_RUN
522      - ALLOW_ECCO_OPTIMIZATION
523    
524    checkpoint51m_post
525    o incorporating changes to get TAMC/TAF working in genmake2
526      - added new TAMC/TAF targets to the Makefile
527      - various cleanups related to package handling
528      - these changes should have no impact on the forward model
529    
530    checkpoint51l_post
531    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
532     - faster algorithm for cal_addtime.F
533     - higher precision arithmetic, where needed
534     - pkg/exf *startdate variables changed from calendar date to
535       model integration time
536    
537    checkpoint51l_pre
538    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
539    o enable to apply restoring on S & T only in a latitude band.
540    o update output (external_forcing_surf modif. change truncation errors)
541       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
542    
543    checkpoint51k_post
544    o change default to: useNHMTerms=.FALSE.
545     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
546       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
547     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
548        exp1, ideal_2D_oce
549     - change data file of oceanic exp (leave the results unchanged for now)
550       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
551    o set gravitySign automatically according to the vertical coordinate used
552      (and change sign: back to "logical" value: +1 when R increases downward)
553    o added an include barrier to the default CPP_OPTIONS.h and
554      removed the #include "PACKAGES_CONFIG.h" from it
555    o fix a bug in mom_fluxform (from chk51j_post)
556    
557    checkpoint51j_post
558    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
559    o adjusted some flow directives (dynamics, thermodynamics)
560    o added cubed-sphere case to test cost function
561    o heckpoint_lev?_directives.h now include
562      pkg-specific directives, whenever those are enabled.
563    o Moving pkg-specific flow directives to corresponding pkg
564      Moving pkg-specific differentiation list to corresponding pkg
565      Moving pkg-specific checkpoint-lev storing to corresponding pkg
566      ---> conventions are
567           - pkg_ad.flow
568           - pkg_ad_diff.list
569           - pkg_ad_check_lev?_dir.h
570    
571    checkpoint51i_post
572    o merge of the branch-genmake2
573      - knowingly breaks the older genmake
574      - automatic generation of all ALLOW_${PKG_NAME} defines
575      - new testreport supersedes older testscript
576    o large number of package inclusion and header cleanups
577    checkpoint51i_pre
578    
579    o new output for adjoin of global ocean vector invariant
580    o fix for checkpoint of thermodynamic seaice and bulk_force
581    o Steph gchem various cleanups
582    
583    checkpoint 51h_pre
584    o fixed some single quotes
585    o modify gchem pkg to be more versatile
586    o modifications to clean up dic pkg
587    o add pkg/cfc
588    
589    checkpoint51g_post
590    o provide links for ARPACK and ADM*TLM
591    o start removing verification/vero/
592    o update AD-related stuff
593      (in particular some IF-statements in model/src/ routines)
594    o adding to verification/global_ocean.90x40x15/ adjoint of
595      vector invariant setup
596    
597    checkpoint51f_post
598    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
599    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
600      of tracer Green's fucntions for ocean inversion project.
601    
602    checkpoint51f_pre
603    o Added on-the-fly spatial interpolation capability
604        "USE_EXF_INTERPOLATION" to pkg/exf.
605      - This is a temporary Cartesian-grid hack until
606        the super-duper ESMF coupler becomes available.
607      - See verification/global_with_exf/README for usage example.
608      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
609        flags and modified pkg/seaice accordingly.
610    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
611        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
612        non-local transport term.
613    
614    checkpoint51e_post
615    o pkg/mom_vecinv:
616      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
617      - add time-ave diagnostic of vorticity advection.
618    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
619    o atmospheric geopotential: - include water vapor effect;
620                                - use p^kappa in p* scaling.
621    o land pkg: read initial state from files.
622    o AIM : add stratospheric drag in the upper level
623    
624    checkpoint51d_post
625    o change function ILNBLNK (=> last non-blank char.) to return zero
626      (instead of the string length) when the string. char is empty
627    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
628    o modif's to restore TAMC compatibility
629      - avoid "_d" constructs in PARAMETER declarations
630      - avoid interrupting lines by comment lines
631    o Use cluster local disks for purely local I/O
632      vs. globally visible disks needed for ctrl stuff
633      (merged from ecco-branch)
634      - new active_file_loc... and mdsio_..._loc routines
635      - affected packages: autodiff, ctrl, grdchk, mdsio
636    
637    checkpoint51c_post
638    o introducing integer flag debugLevel
639      - debLevZero: suppress all output
640      - debLevA: standard
641      - debLevB: equivalent to current debugMode=.TRUE.
642    o introducing pathname variable mdsioLocalDir for mdsio
643      that can be specified at runtime
644      (relevant for cluster I/O to local disk)
645    `
646    >>>checkpoint51b_post
647    adjoint of ptracers
648    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
649    o extended state in checkpoint_lev?, etc.
650    o alternative ctrl/cost with tr1 or ptracer
651    o new comlev1_bibj_ptracers
652    o new ptracers.flow
653    o made ptracers_forcing same as external_forcing_s
654    o added verification for adjoint with ptracers
655      - adm. grdchk fail so far
656      - tlm. grdchk OK
657      - checked tapelev/comlev recomputations: OK
658    <<<checkpoint51b_pre
659    
660    checkpoint51a_post
661    o added code for biogeochemistry package
662      - new pkgs: dic, gchem
663      - new subroutine in ptracers
664    o modify code for biogeo packages
665      - in model/src and pkg/ptracers
666    
667    checkpoint51
668    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
669      - autodiff, ctrl, exf, grdchk, seaice
670      kept separate packages
671      - cost, ecco, obcs
672    o updating verification/internal_wave, verification/lab_sea
673      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
674    
675    checkpoint50i_post
676    o Preparing next differentiable checkpoint and sync
677      of MAIN vs. ecco-branch
678      - 1st step: this one is differentiable
679      - 2nd step: next(! not this) checkpoint will have updated packages
680                  from ecco-branch)
681    
682    checkpoint50h_post
683    o new package "land": provide surface BC for AIM.
684    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
685    o AIM: use true log-P extrapolation for near surface temp (= as in
686        F.Molteni paper) ; update aim.5l_cs output.
687    o New variable in PARM03 for more flexible pickups
688    o somewhat cleaned package initialisation sequence for
689      ctrl/ cost/ ecco/ in packages_... routines
690    
691    checkpoint50g_post
692    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
693      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
694      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
695        made the default because of faster convergence than ADI
696    
697    checkpoint50f_post
698    o exf totally restructured
699      - replaced all exf_set_ routines by one generic exf_set_gen.F
700        and made sure it's still differentiable
701      - split exf_getffields.F into new exf_bulkformulae.F
702      - exf_inscal_/exf_outscal_ suffixes consistent with field names
703      - updated adjoint/makefile and relevant verif. accordingly
704    
705    checkpoint50f_pre
706     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
707          + change Evap over land. (update aim.5l_cs output)
708     o added missing .cvsignores and made uniform across expts
709     o changed configuration of tidal_basin_2d expt
710     o added pkg/debug functions for tracing code in fatal crashes
711     o tidied pkg/monitor to use MONITOR_OPTIONS.h
712     o new fn in pkg/monitor to stop model if solution grows too big
713     o removed lots of single quotes from comments
714    
715    checkpoint50e_post
716    o make KPP work with PTRACERS
717     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
718       nearly a copy of kpp_transport_s
719     - there is no analogue to SurfaceTendencyS, so I have to use
720       gPtr(of the surface layer) instead
721    o add a new platform SunFire+mpi (SunFire 15000) to genmake
722    checkpoint50e_pre
723    
724    checkpoint50d_post
725    o change kpp output from multiple-record state files to single-record state
726      files analogous to write_state.F
727    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
728      analogous to the cg2d-related output.
729    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
730      so that writing to internal file fn (with length 512) fails.
731    checkpoint50d_pre
732    
733    checkpoint50c_post
734    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
735    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
736    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
737    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
738    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
739    
740    checkpoint50c_pre
741    Merging from release1_p13:
742    o bug fix for pkg/seaice dynamic solver
743    o Added SEAICE_initialHEFF to pkg/seaice
744    
745    checkpoint50b_post
746    o store u*,v* in gU,V instead of in guNm1,gvNm1
747    o in order to put the momForcing out of the Adams-Bashforth:
748      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
749      to timestep.F
750    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
751    o re-generate output for highly sensitive test-exp:
752       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
753    
754    checkpoint50b_pre
755    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
756    o corrected CPP option mismatch in exf_Bulk... functions for case
757      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
758    
759    checkpoint50a_post
760    o Bug fix for merging between c50 and KPP.
761      ikey was passed from thermodynamics to kpp_calc via
762      common block rather than being recomputed in kpp_calc,
763      in contradiction with new key itdkey.
764      New key ikppkey created, and tamc.h headers updated.
765    
766    checkpoint50
767    - 2nd step of merge with ecco-branch:
768      merge changes in ecco-branch back into main trunk
769    - bug fix in find_alpha
770    - more storing in gmredi_calc_tensor.F, kpp_routines.F
771    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
772    - merged some sliced AD support routines
773    
774    checkpoint49
775    merged from ecco-branch:
776    o exf:
777      - Enable initialisation of forcing fields to constant
778        (runtime) values.
779      - in exf_getffields.F
780        Reduce i-/j-loop to interior domain, discarding overlaps.
781        That also fixes wrong TAF-key computations for key_1, key_2
782        with bulf formulae.
783      - exf_init.F modify #ifdef for exf_init_evap
784      - exf_getffieldrec.F, ctrl_getrec.F
785        The following INT-usages are not safe:
786          fldsecs  = int(fldsecs/fldperiod)*fldperiod
787          fldcount = int(fldsecs/fldperiod) + 1
788        and were modified.
789    o autodiff: checkpoint_lev...
790      - updated storing for bulk formulae (some arrays were missing)
791      - added state for seaice package
792      - synchronized with main branch
793    o DIVA:
794      Modif.s in
795      - the_main_loop.F
796      - the_model_main.F
797      and added cost_final_restore.F cost_final_store.F
798      o With these changes, it is possible to fully separate
799        the first forward run to compute the cost function (mdthe_main_loop)
800        and adjoint runs over individual DIVA intervals (adthe_main_loop)
801        into separate model executions.
802        This enables better tuning of DIVA to given queue sizes.
803      o Loss of cost function value in consecutive DIVA runs is
804        fixed by storing to 'costfinal' file.
805      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
806        beginning/end of adjoint integration is accounted for.
807      The current changes apply to TAF-1.4.26.
808      TAF has one remaining bug, requiring one manual change
809      (see MITgcm manual).
810    o cal: synchronized between MAIN and ecco-branch
811    
812    checkpoint48i_post
813    o Changes to restore differentiability of code w.r.t. previous tag
814      (mostly adding new routines to make list and replacing
815      pressure by totPhiHyd).
816    o Updated and merged grdchk package
817      - has both ADM and TLM checks
818      - works for single- and multi-proc.
819      - output cleaned
820      - worked successfully for parallel DIVA
821    o genmake:
822      - Adding -platform=SP4
823      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
824    o Modif. for DIVA:
825      ctrl_unpack should not be called in intermediate DIVA interval.
826      (similar thing would apply for active files such as
827      tbar, sbar, psbar, which should not be reinitialised;
828      only relevant for ecco-branch)
829    
830    checkpoint48h_post
831    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
832    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
833    o Added SEAICE_initialHEFF to pkg/seaice
834    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
835    
836    checkpoint48g_post
837    --- EOS:
838    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
839      store total Potential in totPhyHyd for diagnostics & EOS.
840    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
841    --- Pressure/geopotential gradient:
842    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
843    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
844      ( changes results of global_ocean_pressure )
845    o NLFS + z-coord.: add eta*Rho' contribution.
846    o accurate phiHyd when using interface-W at the middle between 2 centers
847     ( changes results of ideal_2D_oce )
848    o includes r* 2nd term in potential gradient.
849    
850    checkpoint48f_post
851    Merging from release1_p12:
852    o Modifications for using pkg/exf with pkg/seaice
853      - improved description of the various forcing configurations
854      - added basic radiation bulk formulae to pkg/exf
855      - units/sign fix for evap computation in exf_getffields.F
856      - updated verification/global_with_exf/results/output.txt
857    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
858      (SBO) core products, including oceanic mass, center-of-mass,
859      angular, and bottom pressure (see pkg/sbo/README.sbo).
860    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
861      to avoid negative values in shallow regions.
862      - updated verification/natl_box/results/output.txt
863      - updated verification/lab_sea/results/output.txt
864    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
865    o Added useSingleCpuIO option (see PARAMS.h).
866    o Updated useSingleCpuIO option in mdsio_writefield.F to
867      work with multi-field files, e.g., for single-file pickup.
868    o pkg/seaice:
869      - bug fix in growth.F: QNET for no shortwave case
870      - added HeffFile for specifying initial sea-ice thickness
871      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
872    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
873      kpp_transport_t.F, forward_step.F, and the_main_loop.F
874    o pkg/seaice:
875      - adjoint-friendly modifications
876      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
877    
878    checkpoint48e_post
879    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
880    o dynamics: change definition of computational domain & adapt mom_fluxform
881      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
882    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
883        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
884        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
885        global_ocean.90x40x15 global_with_exf global_ocean_pressure
886        inverted_barometer solid-body.cs-32x32x1
887      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
888    
889    checkpoint48d_post
890    o in preparation for r*:
891     a) use pre-computed gradient of hydrostatic potential:
892        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
893     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
894        => affects results of glob_oce_pressure (different truncation error)  
895      update output.txt of ideal_2D_oce & global_ocean_pressure
896    
897    checkpoint48d_pre
898    o in preparation for r*:
899      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
900      pass the 2 comp. of the grad. as arguments to momentum S/R.
901      but for the moment, only used if it does not change the results.
902    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
903    
904    checkpoint48c_post
905    Modifications in treatment of initial flux forcing controls
906    to avoid extra storing of flux fields.
907    
908    checkpoint48c_pre
909    o Added tidal_basin_2d experiment (currently 1D!)
910    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
911    
912    checkpoint48b_post
913    o r* coordinate added in #ifdef NONLIN_FRSURF block.
914     (modification to pressure gradient not yet implemented)
915    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
916      (for U & V) that are used for vertical advection of momentum.
917    
918    checkpoint48a_post
919    o In preparation for r*, use temp. array to compute vertical transport
920       in flux-form momentum pkg. => change results of few test-exp.
921      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
922                        lab_sea, natl_box & plume_on_slope
923    
924    checkpoint48
925    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
926    
927    checkpoint47j_post
928    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
929    o moved adexch from forward_step to addummy_in_stepping
930    o added exch in ctrl_map_...
931    o aveFreq.=0. at end of cost_final to avoid overwrite in
932      reverse checkpointing loop
933    o Yet more changes in gmredi:
934      * adgmredi_calc_tensor
935        avoiding all recomputation of gmredi_slope_limit
936      * adgmredi_x/y/rtransport
937        added flag for excessive storing to avoid recomp. of
938        u/v/rtans, dTdx/y/z
939        -> this is not really necessary and very memory-consuming
940      * adgmredi_slope_psi:
941        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
942      * gmredi_slope_limit
943        re-activated full calculation of taperfct for case 'ac02'
944    o updating verification/ adjoints of carbon, global_ocean.90x40x15
945    
946    checkpoint47i_post
947    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
948    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
949      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
950    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
951    o gmredi: fix few bugs.
952    
953    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
954    This will be a good checkpoint to plug into the ecco-branch.
955    o few modif.'s to get latest version adjointed
956      (mainly kick out code in ini_linear_phisurf)
957    o modif's to run adjoint with exactConserv
958    o case GM_BOLUS_ADVEC should be cleaned
959      S/R gmredi_slope_psi should be cleaned
960    o verification/carbon now has exactConserv=.TRUE.
961    
962    checkpoint47g_post
963    o time-average AIM output: becomes independent from statvars time-average
964      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
965    o After TAF bug fix:
966      Tested adjoint of gmredi package.
967      Tests were done with checkpoint47 rather than with latest
968      checkpoint47f_post since the latter is broken for the adjoint
969      verification/carbon/ contains both ADM and TLM gradient checks.
970    Here they are, before they get changed/lost/stolen.
971    Mostly modif.'s to fix numerical sensitivities.
972    Gradient checks OK for
973    - GM_taper_scheme:
974      * clipping
975      * ac02
976      * linear
977      * glw91
978      * dm95
979      * ldd97
980    - GMREDI_OPTIONS:
981      * GM_VISBECK_VARIABLE_K
982      * GM_NON_UNITY_DIAGONAL
983      * GM_EXTRA_DIAGONAL
984      * GM_BOLUS_ADVEC
985    in conjunction with data.gmredi parameters to be checked in
986    in a few minutes under verification/carbon/code/
987    
988    checkpoint47f_post
989    Merging from release1_p10:
990    o modifications for using pkg/exf with pkg/seaice
991      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
992        and SEAICE_EXTERNAL_FLUXES
993      - pkg/exf CPP options EXF_READ_EVAP and
994        EXF_NO_BULK_COMPUTATIONS
995      - usage examples are Experiments 8 and 9 in
996        verification/lab_sea/README
997      - verification/lab_sea default experiment now uses
998        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
999    
1000    checkpoint47e_post
1001    o created a tag prior to creating a branch
1002    
1003    checkpoint47d_post
1004    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1005      at the bottom boundary had an erroneous half slip boundary condition
1006    o added bottom drag and no slip boundary condition capabilities to
1007      oceanic pressure coordinates code
1008    o added new verification experiment global_ocean_pressure, this experiment is
1009      also described in the tutorial section of the manual
1010    checkpoint47d_pre
1011    
1012    checkpoint47c_post
1013    o Added a verification experiment for a global cubed-sphere ocean run
1014      -  verification/global_ocean.cubed32x32x30
1015      -  uses pkg/therm_seaice and pkg/bulk_forcing
1016    
1017    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1018    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1019      when using P-coordinate; only implemented for atmospheric config.
1020    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1021      NOTES: requires option NONLIN_FRSURF to be "#define".
1022    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1023    
1024    checkpoint47b_post
1025    Merging from release1_p9:
1026    o pkg/seaice
1027      - removed GOTO's and added taf directives
1028      - double precision constants to reduce the g77 (Linux)
1029        to F77 (SGI) differences reported in release1_p8
1030    o tools/genmake
1031      - added SGI options
1032    o verification/testscript
1033      - updated to that of checkpoint47a_post
1034    o verification/global_ocean.90x40x15/input/eedata
1035      - modified for SGI f77 compatibility
1036    o verification/lab_sea
1037      - added description of sea-ice model
1038      - added missing matlab routines
1039      - added test of thermodynamics parallelization
1040    
1041    checkpoint47a_post
1042    o new pkg: aim_v23
1043     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1044       for now, keep the same surface forcing as before.
1045     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1046     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1047     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1048    o add diagnostic of surface correction term in monitor output
1049    
1050    o bulk_force and therm_seaice
1051    - Two packages:  bulk_force (Bulk forcing)
1052      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1053    - Earlier integration from Stephaine Dutkiewicz
1054      and Patrick Heimbach.
1055    - Two ifdef statements for compile time,
1056       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1057    
1058    checkpoint47
1059    differentiable version of checkpoint46n_post
1060    o bug fix in quasihydrostaticterms
1061    o * "clean" adjoint code (in terms of extensive recomputations)
1062        can now be obtained for all GMREDI options (i.e. for
1063        - GM_VISBECK_VARIABLE_K
1064        - GM_NON_UNITY_DIAGONAL
1065        - GM_EXTRA_DIAGONAL
1066        - GM_BOLUS_ADVEC )
1067      * However, wrong gradient check problem remains unsolved.
1068      * New CPP options have been introduced for different
1069        tapering schemes
1070    o external_fields_load now part of differentiation list
1071    o pressure needs multiple storing;
1072      would be nice to have store_pressure at beginning or
1073      end of forward_step, e.g. by having phiHyd global (5-dim.)
1074      (NB: pressure is needed for certain cases in find_rho,
1075      which is also invoked through convective_adjustment).
1076    o recomputations in find_rho for cases
1077     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1078    o #define ATMOSPHERIC_LOADING should be differentiable
1079    o ini_forcing shifted to begining of initialise_varia
1080    o Incorporating QNVS line search routines into MITgcm
1081      (this is separate code, and therefore not under pkg)
1082      lsopt/, optim/
1083    o Updated verification/carbon/
1084      - #define GM_VISBECK_VARIABLE_K
1085      - GM_taper_scheme    = 'ldd97'    
1086    
1087    checkpoint46n_post
1088    Merging from release1_p8:
1089    o verification/natl_box:
1090      updating new external_fields_load routine
1091    o New package: pkg/seaice
1092      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1093      The sea-ice code is based on Hibler (1979-1980).
1094      Two sea-ice dynamic solvers, ADI and LSR, are included.
1095      In addition to computing prognostic sea-ice variables and diagnosing
1096      the forcing/external data fields that drive the ocean model,
1097      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1098      The implied surface heat flux is then stored in variable
1099      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1100      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1101      non-local transport term.  Because this call precedes model
1102      thermodynamics, temperature under sea-ice may not be "exactly" at
1103      the freezing point by the time theta is dumped or time-averaged.
1104      N.B.: fairly large differences in accuracy occur across
1105            different platforms/compilers; comparison between
1106            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1107            generated output gives:
1108       T           S           U           V
1109      C D M    c        m  s        m  s        m  s        m  s
1110      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1111      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1112      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1113    
1114      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1115    o GAD:
1116      - generated new common blocks to account for call of
1117        same gad routines with differing traceridentities
1118        (needed to modify tracerIdentity indices in GAD.h)
1119      - generated separate common blocks for case useCubedSphereExchange
1120        (Department of Futurology)
1121      - parameter lists to gmredi_?transport: added tracerIdentity
1122      - added new key indices to tamc.h
1123    o external_fields_load:
1124      - added this routine to TAF list
1125      - needed to make some common blocks global and additional storing
1126        along the same lines as exf package (checkpoint_lev?_directives.h)
1127    o exf:
1128      updated external forcing package
1129      - bug fixes carried over from ecco-branch
1130        (missing OBCS_OPTIONS.h in two routines)
1131      - enable easy to use "no forcing".
1132      - added exf I/O for atmospheric loading
1133      - added exf I/O for runoff data
1134      - transfered scaling between exf <-> MITgcm to exf namelist
1135    o Adding new verification experiment global_with_exf.
1136      This verification experiment is almost identical to the
1137      global_ocean.90x40x15 experiment, except that it uses
1138      the exf (and cal) package instead of the
1139      external_fields_load routine (cf README file).
1140    
1141    checkpoint46m_post
1142    o modified testscript to return -- when there are no lines of "%MON" output
1143    o added new flag "quasiHydrostatic" for QH mode
1144      and new routine quasihydrostaticterms()
1145    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1146      New routine: mom_u_coriolis_nh()
1147    o fixed sign of non-hydrostatic metric terms in u and v equations.
1148      Depend on correct sign of gravitySign.
1149    o added work.pc* to .cvsignore in aim directories using ifc
1150    o introduced flag for controllin non-hydrostatic metric terms
1151    o removed gravitySign from PARM04
1152    o switched to g77/ifc from pgf77 in aim experiments
1153    
1154    checkpoint46l_post
1155    o made convective adjustment work with pressure coordinates:
1156     - changed the direction of k-loop in convective_adjustment.F for the
1157       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1158     - adjusted the reference pressure k-index in convective_adjustment.F
1159     - adjusted the convection condition in convect.F (in analogy to
1160       calc_ivdc.F)
1161     - convective_adjustment no longer computes anything on the halos
1162     - removed the warnings about negative salinity from find_rho.F and
1163       find_alpha.F; instead the new routine look_for_neg_salinity, called
1164       at the beginning of find_rho, find_alpha, and find_beta, does a
1165       check of the entire slice, if CPP-option
1166       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1167    checkpoint46l_pre
1168    
1169    checkpoint46k_post
1170    o fixed the verification/global_ocean.90x40x15 experiment:
1171     - new bathymetry (the world according to A., JMC, and M.)
1172     - new initial fields and forcing fields (*.bin files)
1173     - new POLY3.COEFFS (for the next release one should switch to a full
1174       equation of state: JMD95P or MDJWF)
1175     - fixed several errors and redundancies in the data file
1176     - experiment uses looped cells
1177     - added matlab directory with diagnostic scripts for plotting of output
1178    
1179    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1180     - read AIM physics parameters from a file (data.aimphys)
1181     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1182    
1183    checkpoint46j_post
1184    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1185    o move wVel computation at the end of the time step, in S/R integr_continuity
1186    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1187    o update timeave pkg for wVel diagnostic.
1188    checkpoint46j_pre
1189    
1190    checkpoint46i_post
1191    o Clean up AIM package (and keep the results unchanged):
1192      include CPP_OPTION and use IMPLICT NONE in all routines ;
1193      declare all the variables _RL ; use _d 0 for all numerical constants.
1194      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1195    
1196    checkpoint46h_post
1197    o cleaned up the use of rhoNil and rhoConst.
1198      - rhoNil should only appear in the LINEAR equation of state, everywhere
1199        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1200        and the dynamical equations are all divided by rhoConst
1201    o introduced new parameter rhoConstFresh, a reference density of fresh
1202      water, to remove the fresh water flux's dependence on rhoNil. The default
1203      value is 999.8 kg/m^3
1204    o cleanup up external_forcing.F and external_forcing_surf.F
1205      - can now be used by both OCEANIC and OCEANICP
1206    checkpoint46h_pre
1207    
1208     Added code to convert surface volume flux (fresh water) into
1209     a mass flux when using P coordinates in the ocean (OCEANICP).
1210     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1211    
1212    checkpoint46g_post
1213    o Include a new diagnostic variable phiHydLow for the ocean model
1214      - in z-coordinates, it is the bottom pressure anomaly
1215      - in p-coordinates, it is the sea surface elevation
1216      - in both cases, these variable have global drift, reflecting the mass
1217        drift in z-coordinates and the volume drift in p-coordinates
1218      - included time averaging for phiHydLow, be aware of the drift!
1219    o depth-dependent computation of Bo_surf for pressure coordinates
1220      in the ocean (buoyancyRelation='OCEANICP')
1221      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1222        Theta, Salinity, and Pressure in the parameter list. This routine is
1223        presently contained in find_rho.F. This routine does not give the
1224        correct density for 'POLY3', which would be a z-dependent reference
1225        density.
1226    o cleaned up find_rho
1227      - removed obsolete 'eqn' from the parameter list.
1228    o added two new verification experiments: gop and goz
1229      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1230    checkpoint46g_pre
1231    
1232    checkpoint46f_post
1233    o Enable tangent linear (forward mode) gradient checks:
1234      - extended active file handling to g_... files
1235      - added TANGENT_SIMULATION to theSimulationMode
1236      - extended grdchk package accordingly
1237    o added tangent linear setup in verification/carbon/code_ftl
1238    o added adjoint setup in verification/front_relax/code_ad
1239    
1240    checkpoint46e_post
1241    o Added new equation of state -> MDJWF
1242      - EOS of McDougall et al., 2002, JAOT, submitted
1243      - caveat: the equation of state is only valid for a smaller (more
1244        realistic?) range of values than JMD95P/Z and UNESCO
1245      - added masks to the calculation of pressure in store_pressure
1246      - added more check values for density in check_eos (ini_eos.F), some of
1247        the old check values are out of the range of the MDJWF-eos, so don't
1248        expect perfect matches for those
1249    checkpoint46e_pre
1250    
1251    checkpoint46d_post
1252    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1253      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1254      case of pressure coordinates. eosType='JMD95Z' in
1255      combination with buoyancyRelation='OCEANICP' now causes an error.
1256    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1257      in find_alpha/beta.
1258    checkpoint46d_pre
1259    
1260    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1261      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1262    
1263    checkpoint46c_post
1264    o Changes necessary for ocean in p-coordinates
1265     -  Added new buoyancy relation = 'OCEANICP'
1266     -  Added new parameters = gravitySign (this used to be contained inside
1267        the factor dRdZ which I added when we first switched to R coordinates).
1268     X GM/Redi is not compatible (yet)
1269     X bottom drag and no-slip need to be debugged.
1270    checkpoint46c_pre
1271    
1272    checkpoint46b_post
1273    o Added new equation of state -> JMD95Z and JMD95P
1274      - EOS of Jackett and McDougall, 1995, JAOT
1275      - moved all EOS parameters into EOS.h
1276      - new routines ini_eos.F, store_pressure.F
1277    o Added UNESCO EOS, but not recommended because it requires
1278      in-situ temperature (see JMD95)
1279    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1280      unesco.f to be used with POLY3
1281    checkpoint46b_pre
1282    
1283    checkpoint46a_post
1284    o Added (atmospheric) pressure loading
1285      - new field in FFIELDS.h, etc...
1286      - new cpp flag ATMOSPHERIC_LOADING
1287    o Changed hFacC to _hFacC in calc_phi_hyd.F
1288    o Added SHORTWAVE_HEATING to some files for consistency
1289    checkpoint46a_pre
1290    
1291    checkpoint46
1292    further merges from release1_p5
1293    o new ctrl package
1294      - adopted from ECCO environment to enable optimization
1295      - added Eliassen Palm fluxes to controls
1296    o added Eliassen Palm flux controls to gradient check package
1297    o cost package
1298      - Compatible with new ctrl package
1299      - added Eliassen Palm cost hooks
1300      - modif's of existing cost functions
1301    o Adjoint-related bug fixes in kpp:
1302      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1303      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1304    o autodiff package
1305      - flow directives:
1306        + new for S/R do_the_model_io
1307        + enhanced for S/R checkpoint
1308        + new gmredi.flow
1309      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1310        disable adcommon.h/g_common.h by default.
1311      - fixed problem for adjoint of global_max
1312    o modified verification/carbon/
1313    o New setup for adjoint of global_ocean
1314    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1315    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1316    o incorporated hooks for sponge layer code (external_forcing.F)
1317    
1318    checkpoint45d_post
1319    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1320    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1321      (affects plume_on_slope "cg2d" output)
1322    o add new parameter deltaTfreesurf for free-surface time stepping
1323    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1324    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1325    o change phiMin in exp1 (to agree with documentation)
1326    o add new flags:
1327     - T,S forcing inside/outside Adams-Bashforth
1328     - turn off temp,salt advection and/or forcing
1329     - for each tracer, define internal flag for multiDimAdvection & A-B
1330    o monitor: change definition of KE to check conservation of Energy
1331    
1332    checkpoint45c_post
1333    o Removed f90 comments ("!")
1334    o Modified initialisations to enable exf package for MITgcm
1335      (without invoking ECCO_PACKAGE).
1336    o modifications to gradient check package (Martin Losch)
1337      - enable centered differences
1338      - modified format of standard output
1339    
1340    checkpoint45b_post
1341    o cleaned exchange calls in cg2d
1342    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1343    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1344      to configure barotropic setup (Martin Losch)
1345    o moved some initialisations within bi,bj loop in dynamics
1346      (TAF flow dependency)
1347    o in initialise_varia, moved call packages_init_variables
1348      before convective_adjustment_init
1349      (corresponding adjustment of TAF tape initialisation).
1350    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1351    
1352    checkpoint45a_post
1353    o compute Rho over the whole domain (extend iMin,jMin indices)
1354    o specific exchange for X-slice domain (case Ny=1)
1355    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1356    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1357    
1358    checkpoint44h_post = checkpoint45
1359    o Fix to restore differentiability:
1360      place at which packages_init_variables is called in
1361      initialise_varia is crucial for reverse control flow.
1362    o modifications in GMRedi to enable stable adjoint
1363      (corresponding modif's in thermodynamics, dynamics)
1364    o added missing hook for sponge layer code in external_forcing
1365    o modified test cost functions
1366    o storing in gad_advection (plus removal of write(0,*)!
1367    o missing headers TR1.h added in convective_adjustment routines
1368    o errorMessageUnit set non-equal zero in eeboot
1369      (conflict on some platforms, e.g. IBM SP3)
1370    o modified carbon verif.
1371    
1372    checkpoint44h_pre
1373    o vertical grid option: allow to put the Interface at the middle between
1374      2 cell-centers ; replace delZ in pkg/kpp by drF.
1375    o GM Advective form: Tracers are advected using the residual transport (=
1376      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1377    
1378    checkpoint44g_post
1379    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1380      results) ; ifdef missing in thermodynamics.F
1381    
1382    checkpoint44f_pre,checkpoint44f_post
1383    o added PTRACERS package
1384      This allows an arbitrary number of passive tracers to be integrated
1385      forward simultaneously with the dynamicaly model.
1386      + Implemented so far:
1387        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1388        - I/O and checkpointing
1389        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1390      + Not implemented so far:
1391        - KPP
1392        - OBCS
1393      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1394        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1395        line in data.pkg.
1396      + This package is disabled by default since it increases storage.
1397    
1398    
1399    o testscript: added -cleanup option
1400    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1401                 b) enable to filter 2D fields.
1402    
1403    checkpoint44e_pre,post
1404    o re-wrote convective adjustment to use pre-calculated weights
1405      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1406      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1407      Original calls to convect() still in place.
1408    
1409    chkpt44d_pre,post
1410    o added missing EXCLUDE_MONITOR flags
1411    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1412      (incompatible typ in MIN/MAX expressions caused problems
1413      on IBM SP3)
1414    o in genmake added variable MAKEDEPEND
1415      plus resetting for case SunOS
1416    o added timer_stats.c routine for IBM SP3
1417    o removed variables in dynamics
1418    !!! I forgot to create tag chkpt44d_pre !!!
1419    !!! But chkpt44d_pre = chkpt44c_post    !!!
1420    
1421    o real fresh water flux implemented with non-linear free-surface.
1422    
1423    chkpt44c_pre,post
1424    o few fix (mask in shap_s2, EmPmR in external_field_load,
1425      USE_NATURAL_BCS in solve_for_P);
1426    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1427    
1428    checkpoint44b_pre/_post
1429    o merge of relevant stuff from the ecco-branch:
1430      - genmake: removed $S64 overwrite for case SunOS
1431      - pkg/exf: update and corrections for field swapping and obcs
1432      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1433                  harmonized between ECCO and MITgcm
1434      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1435                      updated checkpointing_lev... lists for obcs
1436      - model/src: minor changes in forward_step, plot_field
1437                   added directive for divided adjoint in the_main_loop
1438      - pkg/mdsio: added mdsio_gl_slice
1439    
1440    o check parameters & config (chkpt44a_pre,post)
1441    o OBC and NonLin_FrSurf.
1442    
1443    checkpoint44
1444    o fix bug in mom_vi_del2uv
1445    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1446    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1447    o update AIM experiments (NCEP input files)
1448    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1449    o added some stuff for AD
1450    
1451    checkpoint43
1452    o added two new advection tests
1453    o added global 4x4 degree ocean test
1454    o added test of H&S94 with free surface on cube
1455    o some final mods for gradient check, adjoint,...
1456    
1457    checkpoint42
1458      Fixed AD-related problems:
1459    o Store directives up-to-date with re-arranged Adams-Bashforth
1460      (mainly thermodynamics.F)
1461    o New store directives for multi-dim. advection schemes
1462      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1463      * new common block and key passkey
1464      (mainly gad_advection.F)
1465    o Modified store directives for split of dynamics/thermodynamics
1466      for the case ALLOW_KPP
1467    o Cleaned argument list for timestep_tracer.F
1468    
1469    checkpoint41
1470    o re-formatted/added comments in prologues of key subroutines
1471      to work with protex
1472    
1473    checkpoint40
1474    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1475    o added FLT (floats) package from Arne along with demo. experiment
1476    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1477      implementation of forward-in-time forcing terms
1478    o more mods for non-linear free-surface including new variable
1479    o modified multi-dim method to work on cube
1480    o bug fix in KPP (from DM)
1481    
1482    checkpoint40pre9
1483    o added DST advection schemes
1484    o fix MPI bug on SGI's
1485    o modifications for non-linear free-surface
1486    o fixed conditionals for fixed flow/passive tracer only mode
1487    o added tension/strain form of stress tensor
1488    o changes to commenting of arguments for TAF/TAMC
1489    o added/updated many matlab scripts
1490    o added multi-dimensional advection method for tracers
1491      
1492    checkpoint40pre8
1493    o new package rw/
1494      Added method for dumping intermediate local arrays:
1495      mdsio_writetile - same as mdsio_writefield except works from inside
1496                        bi,bj loop
1497      mdsio_writelocal - same as mdsio_writetile except works for local
1498                         arrays
1499      write_local_r? - higher-level wrapper for mdsio_writelocal
1500      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1501      Example given at end of mom_vecinv.F that dumps some local arrays.
1502    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1503      control flux-form versus vector invariant code.
1504      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1505      or genmake -DISABLE ...
1506    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1507      (additional storing is now needed for case vecinv;
1508      currently nothing implemented to switch this storing off
1509      in case fluxform is used since no CPP flag available).
1510    
1511    checkpoint40pre7
1512    o bug fix in dynamics.F
1513      calc_viscosity called before k=1,Nr loop.
1514    o added some #ifdef's ALLOW_PASSIVE_TRACER
1515    o cleaned initialisations in ctrl_map_ini
1516      related to TAF
1517    
1518    checkpoint40pre6
1519    o split dynamics into thermodynamics & dynamics
1520    o corresponding split of calc_diffusivity into
1521      calc_diffusivity, calc_viscosity
1522      (kpp_calc_diff, kpp_calc_visc).
1523    o Added diffkr, kapgm to control variables
1524    o bug fix in gmredi_slope_limit for ldd97
1525    
1526    checkpoint40pre5
1527    o proper initialization of Adams-Bashforth time stepping
1528      + uses forward step for very first step of model (iter=0)
1529    o re-generated *all* output since almost all output is modified by this
1530      change (sorry but we've been putting this one off for about 2 years)
1531      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1532        *not* regenerated since they are already out of date and I don't
1533        want to create the impression that they are suddenly working.
1534    o removed KAP stuff for DEC's
1535    o modified/added many .cvsignore files in */code and */input
1536    o added new expt "solid-body.cs-32x32x1"
1537      + this uses an alternative form of ini_curvilinear_grid.F which
1538        is not necessarily any better than the current one...
1539    
1540    checkpoint40pre4
1541    o added re-initialisations of utrans,vtrans,rtrans in
1542      calc_common_factors which are crucial for TAF.
1543    o extended iMin,jMin range for calc_common_factors,
1544      calc_diffusivity
1545    o added option ALLOW_PASSIVE_TRACER
1546    o a few minor updates and fixes
1547    
1548    checkpoint40pre3
1549    o created calc_gtr1.F for gad package
1550    o split the_main_loop and re-introduced forward_step
1551    o some recomputations of nIter0 for TAMC
1552    
1553    checkpoint40pre2
1554    o Updated to latest branch of AJA, JMC
1555    o Added gradient check package
1556    o Added routines for passive tracer handling
1557    o Added carbon sequestration sensitivity experiment
1558    
1559    checkpoint39
1560     o Modifications and fixes to support TAMC
1561       (mainly missing or wrong directives)
1562     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1563       in addummy_in_stepping
1564     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1565     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1566     o Included following packages:
1567       cal: calendar
1568       exf: external forcing
1569       ecco: essential routines to control use of cal, exf
1570             (NB: this is not the full ECCO environment)
1571     o disabled some packages by default in genmake
1572    
1573    checkpoint38
1574     o see notes_c37_adj.txt
1575     o corrected wrong layer index in external_forcing_t
1576     o replaced the_main_loop/forward_step by the_main_loop
1577     o removed forceoutput from write_state
1578       (replaced criteria for initial/final state)
1579     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1580    
1581    checkpoint37
1582     o mdsio.F routine split and packaged in pkg/mdsio
1583       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1584        used unless genmake -disable=mdsio)
1585     o allow a more precise surface-geopotential gradient for the atmosphere
1586       taking into account the change in space of Alpha (=1/rho) at the surface.
1587     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1588       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1589     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1590       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1591       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1592     o Time-Average diagnostics defined as a pseudo package "timeave".
1593     o pickup files : old pickup (before c35) did not work with new code (c35
1594       and after) unless activating 2 commented lines in initialise-varia.
1595     o Non-Hydrostatic pickup file Pb fixed.
1596     o bug with Rigid-lid version (since c35) fixed.  
1597    
1598    checkpoint36
1599     o implement Crank-Nickelson barotropic time-stepping
1600     o recover Time-Average diagnostics
1601     o fix Pb in checkpoint (PR#19)
1602     o AIM become a standard package ; clean unused CPP_kees
1603    
1604    checkpoint35
1605     o subtantial rewrite of dynamics.f
1606     o allows staggered time-stepping
1607     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1608     o added bottom drag (linear + quadratic)
1609    
1610    checkpoint34
1611     o Modified exchange routines for correct reverse simulation.
1612     o Added verification output to comply with bug fix in impldiff.F
1613       as of c33 (exp2, natl_box).
1614     o Corrected store directives in dynamics.F
1615     o Corrected array boundaries in impldiff.F
1616     o Corrected array dimensions in gmredi.
1617       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1618     o Added routine GLOBAL_SUM_INT to global_sum.F
1619     o Added mdsio_gl.F for ECCO purposes.
1620    
1621    checkpoint33
1622     o Fixed bug in lower BC in impldiff.F
1623     o Fixed confusion about units of forcing arrays in FFIELDS.h
1624       namely Fu,Fv,Qnet,Qsw,EmPmR:
1625       - Removed verification/natl_box/code/external_fields_scale.F
1626         (did not differ from that in model/src)
1627       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1628         (see FFIELDS.h for description)
1629       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1630         kpp_calc.F and kpp_transport_t.F
1631       - Removed model/src/external_fields_scale.F and calls to it
1632       - verification/natl_box uses flux data with "atmospheric" sign so
1633         a special version of external_fields_load.F is used to
1634         change the data as it's read in. This way, the arrays
1635         have the right units and signs at all times tha a user could
1636         possibly use them.
1637     o Corrected genmake to delete a temporary file during configuration
1638    
1639    checkpoint32
1640     o Scaling of forcing fields moved from external_forcing.F to
1641       external_fields_scale.F, called directly after loading fields.
1642     o Surface relaxation terms added to surface tendency fields in
1643       extra subroutine.
1644     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1645       fields.
1646     o Changes in GMRedi to comply with packaging structure.
1647     o Modifications and bug fixes in KPP package.
1648     o Verification experiment for KPP added (verification/nat_box/)
1649    
1650    checkpoint31
1651     o Packages interface brought in line with defined standard
1652       -> new routines packages_...F
1653       -> changes in initialise_fixed.F, initialise_varia.F
1654       -> enables initialisation interface for ECCO package
1655     o Rescaling of external forcing fields immediately after read
1656       (removed from external_forcing.F)
1657       -> new: surface_fields_scale.F
1658       -> affects ini_foorcing.F, external_fields_load.F
1659     o Computation of surface tendencies before tendency updates.
1660       -> new: external_forcing_surf.F
1661     o Change of variable names useGMRedi, useKPP, useECCO
1662     o Further changes in dynamics.F, impldiff.F for TAMC
1663     o Tested for experiments 0, 2, 4.
1664       - not yet tested for GMRedi.
1665       - not yet tested for KPP.
1666    
1667    checkpoint30
1668     o Updates for OBCs
1669     o New experiment for test OBCs (internal_wave)
1670     o New output.txt in verification/exp4/results/
1671     o Updates for KPP: calculation of viscosity corrected, new variables
1672       kpp_dumpFreq and kpp_taveFreq
1673     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1674       and entry for T90 in genmake
1675    
1676    checkpoint29
1677     o packaged KPP and GM/Redi
1678    
1679    checkpoint28
1680     o Corrected initialization of hFacMin for difference vertical coordinates
1681     o Modified calculation of partial cell thickness to more robust algorithm
1682     o config_summary.F: replaced write_1D_... by write_0D_...
1683       read_write.F: added subroutines write_0D_...
1684     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1685       included some initialisations required for TAMC.
1686     o routine calc_isoslopes: modified sqrt computation to make it
1687       differentiable for zero argument.
1688     o routines dynamics, impldiff:
1689       included store directives and tape key computations required for TAMC.
1690     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1691    
1692    checkpoint27
1693     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1694       formulation works properly with variable resolution.
1695     o restructured the calling tree between the_model_main() and dynamics()
1696     o split initialise() into initialise_fixed() and initialise_varia()
1697     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1698       in new routine ini_psurf()
1699    
1700    checkpoint26
1701     o moved some #ifdef in optional routines to encompass everything
1702       except the argument declarations. This was using up some memory.
1703     o fixed macros like _ADT to work with both versions of Linux cpp
1704     o cleaned up some unused and uninitialized variables
1705       (helps when debugging with strict compile options)
1706     o split up CPP_EEOPTIONS.h into options and macros
1707       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1708     o patch for 2 processor JAM mode
1709    
1710    checkpoint25
1711     o updates for OBCs and NH
1712     o dramatically reduced memory usage
1713     o added "JAM" routines for use on Artic network
1714     o parameterization of convection by implicit vertical diffusion
1715     o added a diagnostic of convective index
1716     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1717       (this is was partly for OBCs and NH but also in anticipation of
1718        an explicit free-surface option)
1719     o initial state input files for U and V
1720    
1721    checkpoint24
1722     o Removed some spurious "REAL"s
1723     o Updated KPP to latest version from JPL
1724     o Added a COS(latitude) in horizontal viscosity
1725    
1726    checkpoint23
1727     o Added del^4 diffusion for salt and temperature
1728     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1729    
1730    checkpoint22
1731     o Made many small changes: implicit none, format(i5), etc...
1732     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1733    
1734    checkpoint21
1735     o Introduced new I/O package that supports direct-access records (mdsio.F)
1736     o Split-up mid-level I/O routines
1737     o Updated input data for experiments 0,1,2,4 and 5
1738     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1739    
1740    checkpoint20
1741     o Tidied up open-boundaries some more
1742     o Added non-hydrostatic code
1743     o Fixed some input data
1744     o Modified MPI start-up to work in "coupled" context.
1745    
1746    checkpoint19
1747     o Tidied up directory structure for verification experiments.
1748     o Added new code for open boundaries.
1749     o Corrected advective terms near boundaries.
1750     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1751     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1752     o Split default parameters out of ini_parms.F into set_defaults.F.
1753    
1754    checkpoint18
1755     o Further changes for optional code generation with
1756       CPP - ugh!
1757    
1758    checkpoint17
1759     o Beginning to incorporating modularity
1760       for supporting atmos. and ocean configs.
1761     o Small changes for TAMC complinace
1762     o New ultra simple test case. Barotropic box
1763       configuration "exp0".
1764    
1765    checkpoint16
1766     o Minor changes to exchange routines to support
1767       accumulation in reverse mode. Adjoint of an
1768       assignment is an addition.
1769     o Changes to support compilation by TAMC (LR(1)
1770       syntax) and by g77 under Linux ( 72 character
1771       limit ).
1772    
1773    checkpoint15
1774     Rewrote exchange routines to allow
1775     o General tile <-> tile connectivity.
1776     o TAMC reverse mode flag ( is this really needed? )
1777     o Variable width overlap and exchange region widths.
1778     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1779       shmput/shmget, VIA, SYSV shmem and every other cool
1780       communication method.
1781    
1782    checkpoint14
1783     Consistent isomorphism chages made. These allow dynamical core
1784     to support both pressure and meters as a vertical coordinate.
1785    
1786    checkpoint13
1787     Release which corrects global_max problem and a couple
1788     of KGM time-averaging diagnostic errors. Also contains
1789     a double-gyre experiment setup as well as the baseline
1790     4 degree global template. The double gyre template is
1791     organised to allow it to be applied automatically to
1792     the baseline configuration.
1793    
1794    branch-point-rdot
1795     A few tidy-ups have been made bt the real point of this
1796     check-point (excuse the pun) is to allow a branch to be
1797     made for the purposes of adding the rDot alterations.
1798     I don't want to commit the rDot to the main-trunk until
1799     we've actually tested it...
1800    
1801    checkpoint12
1802     Tidy up and added generic genmake script (formerly
1803     configure script).
1804     Released to testers.
1805    
1806    checkpoint11
1807     Re-arranged initialise() and introduced ini_vertical_grid()
1808     and ini_masks_etc().
1809    
1810  checkpoint10  checkpoint10
1811   Introduced the configure script.   Introduced the configure script.
1812   Separated out the diags package.   Separated out the diags package.

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